anaconda devconf 2013

8/13/2019 Anaconda DevConf 2013

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Architecture

Vratislav PodzimekPresented by

This work is licensed under a Creative Commons Attribution 3.0 Unported License.

Anaconda Installer
http://creativecommons.org/licenses/by/3.0/http://creativecommons.org/licenses/by/3.0/


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Today's Topics1. What is Anaconda?

2. Why (UI) rewrite

3. The NewUI

4. Architecture

a. Data representation

. !u"#po$e %ode&

'. Threads and co%%unication. Initia& #etup

. Addon de*e&op%ent


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+# insta&&er ,or -edora /!0 and deri*ati*es doine*erythin e&se ut insta&&in

ython pac$ae (pyanaconda) %ain script dracut &iand unit ,i&es

supposed to5

support oth auto%ated ($ic$start) and %anua&insta&&ations and a&so the co%ination o, oth

support raphica& %ode and te6t %ode ,or o&dse7uentia&8on&y ter%ina&s (s39:6)

e si%p&e ut in the sa%e ti%e co%p&e6

What is Anaconda?


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decided at -UD;on Te%pe 2:11%ain reasons5

non8%odern UI orn %ore than 1: years ao

UI8contro&&in &oic %i6ed with the insta&&ation &oicasica&&y a sin&e thread steppin the


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%odu&ar e6tensi&e %u&ti8thread

!u"#po$e as the asic %ode&

raphic desined y =>irn Du,,y

$ic$start @ se&,.data @ $ic$start

custo%iBation screens durin pac$ae insta&&ation

code shared with the new pure&y te6tua& te6t %ode and

Initia& #etup%ore transactiona&

pyanaconda.storae separated as blivet

4C99 insertions() 43C: de&etions(8)

The "e!UI no more scary Anaconda


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Architecture


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#ataa&& stored in the py$ic$start.#!and&er instance

&i,e cyc&e5

&oaded ,ro% the $ic$start ,i&e (i, any)

updated with userEs choices %ade in the UIused to dri*e the insta&&ation

written out as $ic$start ,i&e

tree structure

read updated and written out a&so y the Initia& #etup

setupand execute%ethods doin the insta&&ation &oic


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$ub%&poke model


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$ub%&poke modeleasy and ,ast access to e*erythin

no need to *isit e*ery spo$e

o*er*iew o, the settins (updated y ac$round

threads)&ayout with reat support ,or e6tensions

usa&e ,or oth raphica& and te6t %ode


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$ub &poke % Anaconda


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$ubsstanda&one spo$es and hus are dyna%ica&&y co&&ected,ro% the prede,ined p&aces

cateories and spo$es are dyna%ica&&y co&&ected ,ore*ery hu

the #u%%ary hu and the roress hu

continue possi&e once a&& %andatory spo$es areco%p&eted

auto%ated insta&&ations show su%%ary and proressut continue auto%atica&&y (un&ess user chanesanythin %anua&&y)


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&pokes#tanda&one#po$e and Nor%apo$e c&asses toetherwith custo% windows (


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"ormal &pokeasic ui&din &oc$ o, the NewUI

AI de,ined attriutes5

uiFile, mainWidgetName, category, icon, title,

AI de,ined %ethods5

initializeand refresh

applyand execute

AI de,ined properties5ready, status

mandatoryand completed


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Threads and tk


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Threads and messa)esthreads ,or a&& &on &astin actions

Thread=anaer sin&eton and AnacondaThread c&ass,aci&itatin &oin and threads usae (a&so e6ceptionhand&in)

two %essae 7ueues

huH ,or spo$e to hu co%%unication

proressH ,or reportin and updatin insta&&ation

proresse6peri%enta& i%p&e%entation a&so ,or the te6t %ode(


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Initial &etup-irstoot rep&ace%ent ut the o&d one has to sur*i*eecause o, the &eacy 3rd party p&uins

asica&&y on&y 4: &ines o, code reusin the code andscreens ,ro% Anaconda

reads $ic$start ,i&e produced y Anaconda and writesa new one at the end

coordinates screens with Anaconda and


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Initial &etup


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Addons%any tea%s want to ha*e so%ethin set in theinsta&&ation process (or ,irst oot) ut we cannotde*e&op and %aintain a&& that stu,,

e6a%p&es o, possi&e addons5

AD$ereros rea&% Join with rea&%d

#;A security pro,i&e

suscription %anae%ent

0%acs 5)


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Addon development$ic$start part (%ust e i%p&e%ented)5

c&ass parsin &ines ,ro% the specia& Kaddon sectionand storin data ,ro% the% as its attriutes

&i*es in the se&,.data.addons.L sutree%ethods to %odi,y runti%e en*iron%ent (setup) andcon,iure insta&&ed syste% (execute)

UI part (optiona&)5


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Addon structurea directory under usrshareanacondaaddons

top8&e*e& directory na%ed a,ter the addon(e.. orG,edoraGhe&&oGwor&d)

sudirs ,or particu&ar parts 88 $s ui tuip&aced to the insta&&ation tree y &ora6 or withproduct.i% 88 sti&& ein decided

c&asses auto%atica&&y co&&ected and used i, they are

suc&asses o, c&asses de,ined y the AI


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Addon $*WT*we&&8co%%ented !e&&o wor&d addon M2

sources o, rea&wor$in instances (co%in soon)

Anaconda Addon De*e&op%ent


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Addons +A,Why such a ad na%e?

We donEt ha*e any etter.

What happens i, the addon ,or so%e Kaddon section

is %issin?Nothin. The Kaddon section is inored and Justpasted to the resu&tin $ic$start ,i&e.

Which &anuaes are supported?

ython on&y.


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Addons +A, cont-Why this Kaddon section %ar$in the ,unctiona&ity asein a%ended? ;anEt addon that needs on&y one &ineJust reister a new $ic$start co%%and?

It is possi&e ut the pro&e% is with theksvalidator

too& that needs to distinuish etween in*a&idco%%and and a co%%and o, a %issin addon.


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sti&& wor$ in proress

%u&ti8thread


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.inks

[1] Anaconda!ew"nstaller wiki

[#] $ello world addon

[3] Anaconda Addon %evelopment &uide

['] Anaconda sources
https://fedoraproject.org/wiki/Anaconda/NewInstallerhttp://www.fi.muni.cz/~xpodzim/git/?p=hello-world-anaconda-addon.githttp://www.fi.muni.cz/~xpodzim/git/?p=anaconda-addon-guide.git;a=summaryhttp://git.fedorahosted.org/cgit/anaconda.git/http://git.fedorahosted.org/cgit/anaconda.git/http://www.fi.muni.cz/~xpodzim/git/?p=anaconda-addon-guide.git;a=summaryhttp://www.fi.muni.cz/~xpodzim/git/?p=hello-world-anaconda-addon.githttps://fedoraproject.org/wiki/Anaconda/NewInstaller


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,uestions?vpodzime/redhat-comanaconda0devel0list/redhat-com1anaconda / +reenode

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